Apparatus for feeding fuel to gas-generators.



No. 877,905. PATENTED FEB. 4, 190a.

-- o. F. CATTELL.

. APPARATUS FOR FEEDING FUEL TO GAS GENERATORS.

APPLICATION rnlnn Jun 25 was.

3 SHEETS-53E 1.

No. 877,905. PATENTED FEB. 4, 1908.

GuF. CATTBLL. APPARATUS FOR FEEDING FUEL T0 GAS GENERATORS.

APPLICATION FILED JUHE 25.1906.

' 3 SHEETS-SHEET 2 WITNESSES INVENTOR n, I .Altamq v PATENTED FEB. 4, 1908. 0. F. GATTELL.

ARPARATUS FOR FEEDING FUEL T0 GAS GENERATORS.

APPLICATION FILED JUNE 25.1908.

' 3 SHEETS-SHEET 3 Gigi/IIIEfSES .1. STATES PATENT OFFICE.

are. 857,965.

' all 'tollom'it concern: Be it known that CuARLiqs F. 'CATTELL,

citizen of the United States, residing at West Chester, in the county of Chester and State not Pennsylvania, has invented certain new and usefulim rovements in Apparatus for Feeding Ground Fuel to Gas-Generators, of which the following is a specification. My invention relates to apparatus for lolfeedmg ground -fuel to gas generators and has for its main object to improve the conltruction of such apparatus in various particulars, whereh, a uniform and su erior uality of gas \vi 1 be quickly generatet and 'ii he clog ing of the generator and adjuncts,

from on! ion and like products, will bc materiallylesseneil; and with this and minor objects my im'ention consists of the parts and combination of .parts as will be hereinafter more fully pointed out;

In the drawings: Figure l is a front elevation of my ground fuel feeding apparatus for i gas gencralors, parts being broken away and parts in section. Fig. 2 is a side elevation of thesainc. Fig4f3 is a top plan view, parts being in section. 'Fig 4 is a detail view.

, 1 represents the generator on which is secured the generator lid plate 2 with which it has a, laned and inished gasti-'ht joint.

I 80 This lit plate is secured on the generator in -throngh which position by the pressure exerted by the two screws 3, the shoulders of which bear on the forked 'ends 4 of the cotter bar 5; said. bar transmits the pressure to the lid at, theft-entor, by reason of its central annular opening 6 fitting over the boss 7 whichis integral with-the lid 2. i

8 is a water cooled casting in the generator which is bolted to the under faces of the lid -2 whereby the lid is also kept cool, said castinghaving a central cylindrical opening or spaeef), the lower end of which ilarcd as at 10. A brancho ening leads into said space uel is fed to the rotating frames. 1 1 V j 11 and 12 arestandards' bolted to the lid .2 on which are boltcd standards 13, M, 15 and to which form a frame and are suitably mounted to form slides scoured together by bolts 17- ainl LS at the. to and 'H'OVldt'il with '1 ring 1!) by means of w ich the wholemechine is raised.

An overllow box 20 which receivesthe water that has been used to cool the shaft 21, slides between the standards 14 and 15 as Specification of Letters Patent.

Application filed June 25. 1906- Serial No. 323.254.

oHA'RL sr'. CATTELL, or 'wnsr CHESTER, PENNSYLVANIA.

I L PP ARATUS FOB. FEEDING FUEL TO GAS-GENERATORS.

Patented Feb. 4, 1908.

clearly shown in Fig ,said box or tank having an annular opening in its bottom from which a. tubular extension 22 extends up wardly into thetank to a point below the top of the tank; said shaft being rotaicd within the tubular extension 22, as will be hereinafter described.

23 is an annular rim on the end of the shaft overlapping the joint between the shaft and tube 22. The top 21 of the overflow tank 55 is provided with an annular perforated lug 25 which supports the tube 38 which convc; s the cooling water to the base of the shnftll.

The shaft 2| has a bearing in the lug 7 of the lid 2 and extends into the generator through the space 9 in the water casting S. The lower cud of the tubular shaft 2| is enlarged to form the trum-atcd cone 26 which is also hollow and of slightly smaller (when hot) diameter than-the diameter of the space 9 in the casting H.

27 and 28 are. two winged vanes secured to the shaft 2| which are adapted to be rotatedat a high rate of speed and sen e to feed and distribute the fuel evenly orcr the fuel bed. 30 The vanes are within the space 9 and are protected from the direct heat of the burning fuel by means of the water cooled casting 2!) is a bearing block on which the standards a and b are bolted, said standards sup 35 porting the bottom of the overflow-box 20 to which they are bolted, said block being provided with projections 30 which are slidably mounted in the slots 3!) formed by the stamlards l3 and 14 and 15 and Hi. 'lhis block is provided with a central opening through which the shaft 21 passes; I is a recess formed in the block, around said shaft opening, in which a projection 32 iixcd to the shaft is positioned. Bearing block 29is provided with follower nuts and 34 which project into the recess 31 and are adapted to bear on the projection or shoulder 32 of the shaft 21.

35 is a hand lever fulcrumed at 36 on one side of the standard 13 while its extreme lower end is pirotally secured at 37 to one of the [ilthfitftitlllfi 30 of the bearing block when-- by sait block may be raised and lowered, thus raising the shaft 2| and the overflow box 20 1nd preservingthe relative positions of these )Mts. 1

A small vertical water tube 38 is secured within the tubular shaft 21, its lower end terminating in the truncated cone 26 while its upper endjextends beyond the upper end of the shaft into the perforated lug 25 on the cover of the tank 20. Water from this tube is introduced into the truncated cone. passes up the shaft 21 and is discharged into the overflow tank 20.

40 is a frame bolted between the standards ing 40 in which the spur wheel 41 is journaled about 1,800 revo utions per minute, through of which is regulated by means of the va re and 28 attached to shaft 21. The proper .the screw 50.

bevel gears 56. 57 and 58, the gear 58 being has a step bearing in the leg 60 whidh iscast up said fuel bed), then the air blast is shut off son of the truncated cone 26.

thus allowing shaft 2.1 to he raised and lowered without displacing the spurwheel 41, said wheel being connected to the shaft-.21 by means of the long feather keys 42 which are 5 fixed to the shaft 21. i

43 is a ower shaft jou'rnaled at its upper 5 end in a caring 44 while its lower end is f journaled in a step bearing 45 on the lid 2.

46 is a gear wheel kcyed to the shaft 43 and meshing with the spur wheel -11. v The shaft 43 is geared to revolve at about 750 revolu-' tions per minute 'ving theshaft 21 aspeed of 11 and 12 (see Fig. 1) ha ing a central bearthe train of gears 41 and 46.

. The ground fuel which is fed into the ma- (notshown) through the pipe 47, the supply 48, passes as it falls through the neck 59 onto The screw 50 is rotated by means of the gears 51 and 52 through the shaft 53 in the bearing 54 to the set of gears .55 which takes power from the shaft 43 by keyed to the shaft 43. The teeth of gear 51 are cut at 45. The coal-supply chute has a vertical leg 59 and a leg (50 dis oscd at an angle thereto and leading towart s the vanes 27 and 28 onto which the fuel is delivered. The screw 50 is journaled in the le 59 and integral with the lid 2.

- The operation of the apparatus is as follows: Ground fuel (preferably bituminous coal) is placed in a hopper (not shown) above the apparatus. The generator is started up in the usual way until a good fuel bed is accumulated (preferably of anthracite coal, or oven coke) (using the usual air blast to build and steam introducedunder the grate bars and the stack valve closed, then the ground fuel is fed to the apparatus and distributed' over the fuel bed by the rotating vanes 27 proportion of ground fuel fed into the generator at each run to produce from 1% to grfin of residue cokc on top of said fuel bed.

e duration of a "run (in making water gas) is usually 6 to 7 minutes. After the run is made, the ground fuel is shut off from the generator and the shaft 2] raised by means of the hand lever 35 and block 29 un til the vanes are .ftfll within the space 9 whereby they are protected from the neat, by rea- Then the l steam is shut; off from under the generatorl grate bars, whereupon. the stack valve"(not shown) is opened. The air blast is then turned on to again brin the fuel bed to a proper heat, which usually takes from six to seven minutes when we can then: let, turn off the air blast; 2nd, turn on the steam under the grate bars; 3rd, close the stack alve; and 4th, start the feeding apparatus and feed in the ground fuel. As the ground bituminous coal is sprinkled by the vanes 27 and 28 over the hot fuel bed, the gas is instantly extracted from the small articles of fuel, some of it even before itreac es the fuel bed as the heat is from 2800 to 3200 F ahrenheit in the chamber above the said fuel bed.

With the feeding a paratus, I first, instantly extract the gas rom the coal about 5 cubic feet, per ound of bituminous coal; second, retain t e coke on the fuel bed (which automatically keeps u said fuel bed) third, when making a "run, make water gas from the coke which is a residue from the ground bituminous coal. The two gases (coal and water) are mixed in the generator.

cessfully with my improved ground feed mechanism. The ground fuel may also be fed'or sprayed into the generator with compressed gas or air, or steam. The vanes 27 and 28 serve as t-riiiiinei's" for the "round fuel. That is to sa thev whirl the fuel' he fuel bed is loosened over the fuel bed. up (when necessary) by a clinker bar from the top of the enerator.

What I claim is: 4 1. The combination with a gas generator, of a shaft, a truncated cone on the lower end of the shaft, agitators above said cone, and a fuel chute leading to said agitators.

2. In combination with a gas generator, a shaft, a truncated cone on thejlower end of said shaft, and fuel distributing vanes secured to said shaft.

3. The combination with a gas generator, of a shaft, a truncated cone on the lower end of the shaft, fuel distributing vanes on said shat t and means for raising and lowering said shaft.

4. The combination with a gas generator, of'a bollowshnft, a truncated cone on thelower end ofsaid shaft, fuel distributing vanes on said shaft, and a water tube within said shaft and discharging into said cone, said shaft having a discharge opening at its upper end.

The combination with a gas generator, of n water jncl-zct. of a shaft, vanes secured on said shaft, and means to raise said shaft to bring the vanes within the water jacket.

6. The combination with a gas generator, of a water jacket, a shaft, a truncated cone on the lower end of said shaft, i'anes secured bring said vanes within thcvater jarker.

7. The combination with a gas generator, 5 of ahoiiow shafi, a truncated com on the lower end tin-roof, a water pipe secured n said shaft, and discharging into zzid rum, u discharge tank int) which inner is discharged 1 mi a Uri Kw-dim; 11mins, of :i shaft. rnrrying from the upper end'uf said shaft.

19 8. The cunihinaiiqn with a gas g-f-nerutur, of a hollnw shah. 1L truncated cmicsevuri-d on the lower end thereof, a water pipe iurwired Q imove said h'mck, shaft and feeding means in said shaft- :iiid discharging into mid rune .& discharge tuiih into \\'i;i(il water is disi 5 charged from the upper end of said shaii, of means to move said holhm' shaft in coniicc- 1 tion with said tank' 9. The combination with a gas generator,

of a. lid for the-same, a wan-r jacket susg 2 pended from said lid, a shaftsurrmiiidud h i said jiu-ket \BRCQ wanted to said shaft and a hilillCdlP-(i cone on ie iowui end of said shaft. 10. Thu winhin'zmun with a gas gciierniur,

of a fiie'i feed cmnprising a shaft, vane: 50-

cured radially on said shaft and a truncated c -ziu n said shai'i at the lower ends of said vanes.

11 The z-uziiinnatimi with a gas generator,

said niyans. a Piidflbit bearing him-ii, f i said movement of tii Dior-k and shaft. and. means sinnihiiiieuush'.

In tcstinmny \YiiGI'QOf I affix my signature in pn-sonce of two witnesses.

(I! A RLILS F. (L XT'FELL.

\"itDQSaGSI HOWARD S. GRQFF, J05. H. Bamnwm. 

